:root{--bg:#f4f7fb;--surface:#fff;--surface-alt:#f8fafc;--ink:#111827;--ink-soft:#526070;--muted:#7b8794;--line:#d7dee8;--line-strong:#bcc7d6;--accent:#0f766e;--accent-strong:#115e59;--accent-soft:#e6f4f1;--warning:#b45309;--warning-soft:#fff7ed;--shadow:0 14px 34px rgba(17,24,39,.08)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink)}body{min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{min-height:40px}.page-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:22px 0 40px}.top-nav{position:-webkit-sticky;position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;gap:16px;margin-bottom:26px;padding:12px 0;background:rgba(244,247,251,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand,.top-nav{align-items:center}.brand{display:inline-flex;gap:10px;font-weight:800;color:var(--ink)}.brand:before{content:"";width:28px;height:28px;border-radius:8px;background:linear-gradient(90deg,transparent 42%,hsla(0,0%,100%,.68) 0,hsla(0,0%,100%,.68) 50%,transparent 0),linear-gradient(180deg,#164e63,#0f766e);box-shadow:inset 0 0 0 1px hsla(0,0%,100%,.25)}.nav-links{display:flex;gap:8px}.nav-link{display:inline-flex;align-items:center;justify-content:center;min-height:38px;border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:0 13px;font-size:.93rem;font-weight:650;color:var(--ink-soft)}.nav-link:focus-visible,.nav-link:hover{border-color:var(--accent);color:var(--accent-strong);outline:none}.workspace-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);grid-gap:24px;gap:24px;align-items:stretch;min-height:430px;padding:30px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.hero-copy{display:flex;flex-direction:column;justify-content:center}.eyebrow{margin:0 0 10px;color:var(--accent-strong);font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.page-heading h1,.workspace-hero h1{margin:0;max-width:760px;font-size:clamp(2.05rem,5vw,4.4rem);line-height:1;letter-spacing:0}.page-heading p,.workspace-hero p{margin:16px 0 0;max-width:680px;color:var(--ink-soft);font-size:1rem;line-height:1.65}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid var(--accent);border-radius:8px;background:var(--accent);color:#fff;padding:0 16px;font-weight:750;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .15s ease}.btn:focus-visible:not(:disabled),.btn:hover:not(:disabled){border-color:var(--accent-strong);background:var(--accent-strong);outline:none;transform:translateY(-1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-secondary{border-color:var(--line-strong);background:var(--surface);color:var(--ink)}.btn-secondary:focus-visible:not(:disabled),.btn-secondary:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface-alt);color:var(--ink)}.btn-full{width:100%}.document-preview{display:flex;flex-direction:column;min-height:360px;border:1px solid var(--line);border-radius:8px;background:#eef3f8;padding:18px;overflow:hidden}.doc-toolbar{display:flex;gap:7px;padding-bottom:18px}.doc-toolbar span{width:10px;height:10px;border-radius:999px;background:#94a3b8}.doc-line{height:12px;width:72%;margin-bottom:12px;border-radius:4px;background:#cbd5e1}.doc-line-wide{width:92%}.doc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px;margin:8px 0 18px}.doc-grid div{min-height:70px;border:1px solid #cbd5e1;border-radius:8px;background:#fff}.doc-answer{margin-top:auto;border-left:4px solid var(--accent);border-radius:8px;background:var(--surface);padding:14px}.doc-answer span,.doc-answer strong{display:block}.doc-answer span{margin-top:6px;color:var(--ink-soft);font-size:.92rem}.step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px;gap:16px;margin-top:16px}.action-card{display:grid;grid-template-columns:auto minmax(0,1fr);grid-gap:14px;gap:14px;min-height:132px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:18px}.action-card:focus-visible,.action-card:hover{border-color:var(--accent);outline:none;box-shadow:var(--shadow)}.action-index{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:8px;background:var(--accent-soft);color:var(--accent-strong);font-size:.82rem;font-weight:850}.action-card h2{margin:0;font-size:1.1rem}.action-card p{margin:8px 0 0;color:var(--ink-soft);line-height:1.55}.page-heading{margin-bottom:18px}.question-panel,.source-panel,.workspace-panel{border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.upload-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;grid-gap:0;gap:0}.upload-dropzone{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:330px;padding:32px;cursor:pointer;border-right:1px solid var(--line);background:var(--surface-alt)}.upload-dropzone:hover{background:#f1f6f9}.upload-icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:72px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;color:var(--warning);font-weight:850;font-size:.88rem;box-shadow:0 8px 20px rgba(17,24,39,.08)}.upload-title{display:block;max-width:100%;margin-top:18px;overflow-wrap:anywhere;font-size:clamp(1.35rem,3vw,2rem);font-weight:800}.upload-meta{margin-top:8px;color:var(--ink-soft);line-height:1.5}.file-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.side-panel{padding:22px}.feedback-box h2,.side-panel h2{margin:0 0 14px;font-size:1rem}.stat-list{margin:0 0 18px}.stat-list div{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:11px 0}.stat-list dd,.stat-list dt{margin:0}.stat-list dt{color:var(--muted);font-size:.88rem}.stat-list dd{color:var(--ink);font-weight:750}.status{margin:14px 0 0;border:1px solid #badbd4;border-radius:8px;background:var(--accent-soft);padding:12px 13px;color:var(--accent-strong);line-height:1.5;white-space:pre-wrap}.chat-workspace{display:grid;grid-template-columns:minmax(0,1fr) 360px;grid-gap:16px;gap:16px;align-items:start}.question-panel{padding:18px}.source-panel{position:-webkit-sticky;position:sticky;top:88px;max-height:calc(100vh - 112px);overflow:auto;padding:18px}.field-label{display:block;margin-bottom:8px;font-size:.9rem;font-weight:800}.textarea{width:100%;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--ink);padding:12px 13px;resize:vertical}.textarea:focus{border-color:var(--accent);outline:3px solid rgba(15,118,110,.14)}.textarea-large{min-height:150px}.textarea-compact{min-height:88px}.feedback-actions,.form-footer,.suggestion-row{display:flex;gap:8px}.suggestion-row{flex-wrap:wrap;margin-top:10px}.chip{min-height:34px;border:1px solid var(--line);border-radius:8px;background:var(--surface-alt);color:var(--ink-soft);padding:0 10px;cursor:pointer}.chip:focus-visible,.chip:hover{border-color:var(--accent);color:var(--accent-strong);outline:none}.form-footer{align-items:center;justify-content:space-between;margin-top:12px}.compact,.helper-text{color:var(--muted);font-size:.88rem}.answer-card,.empty-state{margin-top:16px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;font-weight:850}.pill{display:inline-flex;align-items:center;min-height:26px;border-radius:999px;background:var(--surface-alt);color:var(--ink-soft);padding:0 9px;font-size:.78rem;font-weight:800}.answer{border:1px solid var(--line);border-radius:8px;padding:16px;line-height:1.7;white-space:pre-wrap}.answer,.empty-state{background:var(--surface-alt)}.empty-state{display:flex;flex-direction:column;gap:6px;min-height:150px;justify-content:center;border:1px dashed var(--line-strong);border-radius:8px;padding:18px;color:var(--ink-soft)}.empty-state 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solid var(--line);padding:22px}.question-panel,.side-panel,.source-panel{padding:16px}.source-panel{position:static;max-height:none}.feedback-actions,.form-footer{align-items:stretch;flex-direction:column}.form-footer .btn{width:100%}}